The Weston Daily reported recently that high-levels of polychlorinated biphenyls (PCBs), a known carcinogen, have been found in the caulking, soils and bricks of a Weston High School building:

Testing has been concluded at the schools, and a report should be completed soon. Then the town can prepare an abatement plan before getting a cost for the project, Keating said. She received a letter from an engineer that says there are no health concerns associated with the PCBs and the only concern is the disposal of the chemical. However, the EPA’s website says PCBs have been shown to cause cancer in animals. If the caulking is intact, exposure to PCBs is not likely to have health effects, according to the EPA.